Pipeline flange connecting structure for ventilator

Abstract

The utility model relates to a pipeline flange connecting structure for a ventilator, which relates to the technical field of pipeline connection, and comprises a pipeline, a movable flange, an annular plate and a fixed flange, the movable flange and the fixed flange are oppositely arranged at the connecting position of the end part of the pipeline, and the movable flange is propped against one side of the fixed flange through a propping piece; the position and the angle of the movable flange are adjusted by matching the jackscrew with the clamping block, the problem of flange dislocation is effectively solved, the working efficiency is improved, the clamping block is clamped between the movable flange and the pipeline, and the concentricity of the movable flange and the pipeline is guaranteed; an annular groove for containing the annular plate is formed in the inner side of the movable flange, a plurality of butt joint grooves are formed in the contact position of the inner side of the movable flange and the annular plate and the contact position of the fixed flange and the annular plate, sealing of the movable flange and the annular plate and sealing of the fixed flange and the annular plate are achieved, pipeline transmission is guaranteed, and the butt joint grooves prevent leakage of gas media.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a pipeline flange connection structure for a ventilator. Background Technique

[0002] A ventilator relies on mechanical energy to discharge gas and is widely used for ventilation, dust removal and cooling in multiple fields and occasions such as building construction, mine tunnels, etc. The ventilator usually works in cooperation with other equipment. In actual applications, when the pipeline connecting the input port of the ventilator is docked with the pipeline of other equipment, the flange at the pipeline connection position often has the problem of misalignment of the flange mounting holes, and on-site drilling and cutting are required to adjust the position and angle of the flange mounting holes, resulting in waste of manpower and material resources and affecting the construction progress. Content of the Utility Model

[0003] In order to improve the problem of misalignment of the flange mounting holes of the ventilator pipeline in the above background technique, the utility model provides a pipeline flange connection structure for a ventilator.

[0004] A pipeline flange connection structure for a ventilator provided by the utility model adopts the following technical scheme:

[0005] A pipeline flange connection structure for a ventilator includes a pipeline, a movable flange, a ring plate and a fixed flange. The movable flange and the fixed flange are relatively arranged at the connection position of the pipeline end. The movable flange is abutted against one side of the fixed flange through an abutting member, and an annular groove for accommodating the ring plate is formed inside the movable flange.

[0006] Preferably, the abutting member includes a plurality of jackscrew blocks fixedly arranged on the outer surface of the pipeline. A jackscrew penetrates through the jackscrew block, and the end of the jackscrew is connected with a clamping block, and the clamping block is clamped between the movable flange and the pipeline.

[0007] Preferably, the clamping block is of a wedge-shaped structure, and the contact surface of the clamping block with the movable flange is inclined.

[0008] Preferably, a plurality of docking grooves are arranged at the contact positions between the inner side of the movable flange and the ring plate and between the fixed flange and the ring plate. The movable flange and the ring plate, and the fixed flange and the ring plate are mutually matched and sealed through the docking grooves.

[0009] Preferably, mounting holes are formed around the edge of the movable flange, mounting bolts are arranged in the mounting holes, and the movable flange and the fixed flange are fixedly connected through the mounting bolts.

[0010] In summary, the utility model has the following beneficial technical effects:

[0011] 1. The utility model improves the flange at the pipe connection position. The flange on one side is designed into the structure of a movable flange, and the abutting part abuts and cooperates with the fixed flange on the other side. The position and angle of the movable flange are adjusted by using the setscrew in cooperation with the block, effectively solving the problem of flange misalignment, avoiding the waste of manpower and material resources caused by on-site drilling and cutting during installation, improving work efficiency. At the same time, the block is clamped between the movable flange and the pipe, ensuring the concentricity of the movable flange and the pipe, and preventing the movable flange from shaking and bumping during transportation.

[0012] 2. A plurality of docking grooves are arranged at the contact positions between the inner side of the movable flange and the ring plate and between the fixed flange and the ring plate to achieve the sealing between the movable flange and the ring plate and between the fixed flange and the ring plate, ensuring the transmission of the pipeline and blocking the leakage of gas medium. Brief Description of the Drawings

[0013] Figure 1 is a schematic cross-sectional structure diagram of a pipeline flange connection structure for a ventilator in Embodiment 1 of the utility model;

[0014] Figure 2 is Figure 1 the schematic cross-sectional view along line A-A in

[0015] Figure 3 is a perspective view of the abutting part in Embodiment 1 of the utility model;

[0016] Figure 4 is a schematic structural diagram of the block in Embodiment 1 of the utility model;

[0017] Figure 5 is a schematic cross-sectional structure diagram of a pipeline flange connection structure for a ventilator in Embodiment 2 of the utility model.

[0018] Description of the Reference Numerals: 1, pipeline; 2, movable flange; 3, ring plate; 4, fixed flange; 5, abutting part; 6, annular groove; 7, setscrew block; 8, setscrew; 9, block; 10, docking groove; 11, mounting hole; 12, mounting bolt. Detailed Description of the Embodiment

[0019] The following Figures 1 - 5 is a further detailed description of the utility model.

[0020] Embodiment 1 of the utility model discloses a pipeline flange connection structure for a ventilator.

[0021] Referring to Figure 1, A pipe flange connection structure for a ventilator, comprising a pipe 1, a movable flange 2, an annular plate 3 and a fixed flange 4. The movable flange 2 and the fixed flange 4 are oppositely arranged at the connection position of the end of the pipe 1. The movable flange 2 is abutted against one side of the fixed flange 4 through an abutting member 5. An annular groove 6 for accommodating the annular plate 3 is formed inside the movable flange 2.

[0022] Referring to Figure 3 , The abutting member 5 includes a plurality of jackscrew blocks 7 fixedly arranged on the outer surface of the pipe 1. A jackscrew 8 penetrates through the jackscrew block 7, and the end of the jackscrew 8 is connected with a clamping block 9. The clamping block 9 is clamped between the movable flange 2 and the pipe 1.

[0023] Referring to Figure 1 , Figure 3 , Figure 4 , The clamping block 9 is of a wedge-shaped structure, and the contact surface of the clamping block 9 with the movable flange 2 is inclined.

[0024] Referring to Figure 1 , Figure 2 , At the contact positions between the inner side of the movable flange 2 and the annular plate 3 and between the fixed flange 4 and the annular plate 3, a plurality of docking grooves 10 are provided. The movable flange 2 and the annular plate 3, and the fixed flange 4 and the annular plate 3 are mutually matched and sealed through the docking grooves 10.

[0025] Referring to Figure 1 , Figure 2 , An installation hole 11 is formed around the edge of the movable flange 2, and an installation bolt 12 is arranged in the installation hole 11. The movable flange 2 and the fixed flange 4 are fixedly connected through the installation bolt 12.

[0026] The implementation principle of a pipe flange connection structure of the first embodiment of the utility model is as follows: In the first embodiment of the utility model, the flange on one side of the connection position of the pipe 1 is designed as the structure of the movable flange 2. During installation, first, the docking of the annular plate 3 and the fixed flange 4 is carried out. During docking, the docking grooves 10 at the contact position between the fixed flange 4 and the annular plate 3 are matched. Then, the movable flange 2 and the fixed flange 4 are matched, and the clamping block 9 is clamped between the movable flange 2 and the pipe 1. The position and angle of the movable flange 2 are adjusted by using the jackscrew 8 in cooperation with the clamping block 9 to prevent flange misalignment, and the installation bolt 12 at the edge of the movable flange 2 is tightened to realize the fixed connection between the movable flange 2 and the fixed flange 4.

[0027] The second embodiment of the utility model discloses a pipe flange connection structure for a ventilator.

[0028] Referring to Figure 5 , A pipe flange connection structure for a ventilator, comprising a pipe 1, a movable flange 2 and an annular plate 3. Two movable flanges 2 arranged symmetrically at the connection position of the pipe 1 are matched and sealed. The movable flange 2 is abutted against one side of the fixed flange 4 through an abutting member 5. An annular groove 6 for accommodating the annular plate 3 is formed inside the movable flange 2.

[0029] Referring to Figure 5 , multiple docking grooves 10 are provided at the contact position between the inner side of the movable flange 2 and the ring plate 3, and the movable flange 2 and the ring plate 3 are cooperated and sealed with each other through the docking grooves 10.

[0030] Referring to Figure 5 , mounting holes 11 are circumferentially formed at the edge of the movable flange 2, mounting bolts 12 are arranged in the mounting holes 11, and two movable flanges 2 arranged at the connection position of the pipeline 1 are fixedly connected through the mounting bolts 12.

[0031] The implementation principle of a pipeline flange connection structure for a ventilator in Embodiment 2 of the utility model is as follows: On the basis of Embodiment 1 of the utility model, the flanges on both sides of the connection position of the pipeline 1 are designed into the structure of the movable flange 2. The movable flange 2 is docked and sealed through the cooperation of the mounting holes 11 and the mounting bolts 12. The ring plate 3 on the inner side of the movable flange 2 is also docked and sealed through the docking grooves 10, ensuring the transmission of the pipeline 1. The positions and angles of the movable flanges 2 on both sides of the connection position of the pipeline 1 are adjustable, further solving the problem of flange misalignment, and at the same time ensuring the concentricity of the movable flange and the pipeline, preventing the shaking and bumping of the entire connection structure during transportation.

[0032] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A pipe flange connection structure for a fan, characterized in that: The invention comprises a pipeline (1), a movable flange (2), a ring plate (3) and a fixed flange (4), wherein the movable flange (2) and the fixed flange (4) are arranged relative to each other at a connection position at the end of the pipeline (1), the movable flange (2) is connected to one side of the fixed flange (4) via a connecting piece (5), and an annular groove (6) for accommodating the ring plate (3) is provided on the inner side of the movable flange (2).

2. A pipe flange connection structure for a ventilator according to claim 1, characterized in that: The jacking member (5) comprises a plurality of jacking screw blocks (7) fixedly arranged on the outer surface of the pipe (1), jacking screws (8) passing through the jacking screw blocks (7), the ends of the jacking screws (8) being connected to clamping blocks (9), and the clamping blocks (9) being clamped between the movable flange (2) and the pipe (1).

3. A pipe flange connection structure for a ventilator according to claim 2, characterized in that: The clamping block (9) is a wedge-shaped structure, and the contact surface between the clamping block (9) and the movable flange (2) is arranged at an angle.

4. The pipe flange connection structure for a ventilator according to claim 1, characterized in that: A plurality of docking grooves (10) are provided at the contact position between the inner side of the movable flange (2) and the ring plate (3), and at the contact position between the fixed flange (4) and the ring plate (3). The movable flange (2) and the ring plate (3), and the fixed flange (4) and the ring plate (3) are mutually matched and sealed via the docking grooves (10).

5. The pipe flange connection structure for a ventilator according to claim 1, characterized in that: A mounting hole (11) is provided around the edge of the movable flange (2), and mounting bolts (12) are arranged in the mounting holes (11). The movable flange (2) and the fixed flange (4) are fixedly connected via the mounting bolts (12).

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